Microsoft has released four updates to its Microsoft Office for Macintosh line, all primarily plugging various security and compatibility holes.
Microsoft Office 2008 for Mac 12.2.6 – 333 Mb
Microsoft Entourage 2008 for Mac, Web Services Edition – 64 Mb
Microsoft Office 2004 for Mac 11.6.0 – 192 Mb
Open XML File Format Converter for Mac 1.1.6 – 45 Mb
The updates can be received via the above links or running the Microsoft Auto-Update application.